Oregon's Trusted Exterior Cleaning Experts
Protect your home from moss, rain damage, and clogged gutters. Professional soft wash cleaning for residential and commercial properties across the Portland Metro area.
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Response within 2 hours — no obligation
Why Oregon Homeowners Choose NJM
Licensed
Oregon Contractor CCB #252799
Insured
Fully insured with $1M liability coverage
Rating
4.9/5 stars (130+ Google reviews)
Guarantee
100% satisfaction guarantee on every job
OUR SERVICES
Professional Exterior Cleaning for Oregon's Climate
Every service is designed specifically for Oregon’s wet climate. Each one protects your home, extends the life of your property, and improves curb appeal.
WHY CHOOSE NJM
Built for Oregon. Trusted by Homeowners.
We’re not a franchise, we’re your neighbors. Local expertise with results that last.
Local & Owner-Operated
Based in St. Helens. Camron and the crew know every neighborhood, every roof type, and every challenge Oregon weather throws at your home.
Eco-Friendly Methods
Our soft wash technique uses biodegradable, plant-safe cleaning solutions, tough on moss and algae but gentle on your landscaping and the environment.
Transparent Pricing
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Customer Testimonials
What Our Customers Say
130+ five-star reviews from homeowners across the Portland Metro area.
Dena CastroJanuary 2, 2025Trustindex verifies that the original source of the review is Google. Highly recommend NJM Roof & Gutter Cleaning. They were on time and professional. The gentleman that cleaned our gutters went above and beyond cleaning and unclogging them. He also Did a great job cleaning up any mess made from the gutters on the ground. We will be using them again. Sarah JosephDecember 30, 2024Trustindex verifies that the original source of the review is Google. Great People and Work Done! Jill HorwattDecember 28, 2024Trustindex verifies that the original source of the review is Google. Excellent and thorough. Job very well done. Estimate process was clear and quick. I highly recommend NJM to anyone looking to have their gutters cleaned and/or their roof washed. Nathaniel ChurchDecember 27, 2024Trustindex verifies that the original source of the review is Google. I recently hired NJM Roof & Gutter Cleaning to tackle a few cleaning projects around my house, and I am absolutely thrilled with the results! From roof cleaning to gutter cleaning, window cleaning, house washing, and even pressure washing, the team did an incredible job. The crew showed up on time, super friendly, and ready to work. They started with the roof cleaning, which had built up some moss and dirt over the years. It looks brand new now, and I can tell it's going to help with the roof's longevity. The gutter cleaning was just as impressive. They cleared out everything from leaves to small twigs, ensuring that water will flow properly when it rains. I’ve had issues with clogged gutters before, so it was nice to know they were taken care of. The window cleaning was a game changer! My windows hadn't been this clear in ages, and they didn't leave any streaks behind, which I’ve had trouble with in the past. As for the house washing, I was blown away. The exterior of my house looks spotless. They even cleaned up areas I hadn’t thought of, like the side of the garage and my front porch, making everything look fresh and well-maintained. Lastly, their pressure washing service was excellent. My driveway and patio look amazing – all the built-up dirt and grime is gone, and it really enhanced the curb appeal of my home. All in all, I couldn’t be happier with the work that NJM Roof & Gutter Cleaning did. They were professional, efficient, and genuinely cared about getting the job done right. If you need any roof cleaning, gutter cleaning, window cleaning, house washing, or pressure washing done, I highly recommend them! Alyn DoyleDecember 22, 2024Trustindex verifies that the original source of the review is Google. They came out early and finished Timely. The next day it poured rain and one of the downspouts wasn't properly flushed. I contacted them they came out right away the next day and got it fixed we had an excellent experience. Tristian AndersonDecember 8, 2024Trustindex verifies that the original source of the review is Google. If you’re looking for expert roof cleaning, gutter cleaning, or other exterior cleaning services, this business delivers unmatched results. Specializing in a variety of services, including window cleaning, house washing, and pressure washing, they ensure your property stays spotless and well-maintained year-round. One of their standout offerings is moss removal, which not only restores the appearance of your roof but also protects it from damage caused by moss growth. Their professional gutter cleaning services are essential for preventing clogs and water damage, safeguarding your home’s foundation and exterior. Their team is reliable, thorough, and committed to customer satisfaction. Whether you need pressure washing to remove grime from your driveway or house washing to enhance curb appeal, they have the tools and expertise to handle it all. For top-tier roof cleaning, gutter cleaning, and more, this business is a trusted choice. Experience the difference their expert services can make by scheduling an appointment today! Jan BlazekDecember 5, 2024Trustindex verifies that the original source of the review is Google. They showed up early and went straight to work and did a great job. Anthony RudenkoDecember 3, 2024Trustindex verifies that the original source of the review is Google. I recently used a local St. Helens company for roof cleaning, window cleaning, pressure washing, and house washing, and I’m thrilled with the results! Their roof cleaning service was exceptional. They safely removed moss and algae buildup from my roof, restoring it to a pristine condition without any damage. It was clear they had the expertise and tools to handle the job efficiently. The window cleaning was equally impressive. Every pane was left sparkling clean, with no streaks or smudges. My home feels brighter and more welcoming thanks to their attention to detail. For pressure washing, they tackled my driveway, patio, and walkways, removing years of grime and stains. The transformation was remarkable—it’s like I have a brand-new outdoor space! Finally, their house washing service rejuvenated my home’s exterior. Using a gentle soft washing method, they removed dirt, mildew, and discoloration from the siding, giving my house a fresh and polished look. The team was professional, punctual, and friendly throughout. If you’re in St. Helens and need reliable roof cleaning, window cleaning, pressure washing, or house washing, I highly recommend this company. Their quality of work and customer service are second to none! Jenny LinnéaDecember 2, 2024Trustindex verifies that the original source of the review is Google. So grateful I found these responsible, timely, and hard working people! They made the service impossibly easy and did excellent work! I am very impressed! Butch ManleyNovember 29, 2024Trustindex verifies that the original source of the review is Google. I have seen this companies posts spammed daily on a few facebook groups that I have developed an annoyance, and would call anyone else to avoid them. There is such a thing as over advertising. It's annoying and appears desperate.. Knowing the small town you're company is from. I know most of the 5 star are people you probably know or give a discount too to make sure they give a 5 star.. That's how small towns work... So. Less spamming. less annoyance with your brand...Google rating score: 4.9 of 5, based on 53 reviewsVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
HOW IT WORKS
From Quote to Clean in 4 Simple Steps
We make exterior cleaning easy. No hassle, no runaround, just results.
OUR PREVIOUS WORK
Before-After
Alook into some of our work.
FREQUENTLY ASKED QUESTIONS
Answers To Common Roof & Gutter Cleaning Questions
What services do you offer?
We offer comprehensive exterior cleaning services including roof cleaning and moss removal, gutter cleaning and maintenance, house washing, pressure washing (driveways, decks, walkways), window cleaning, and Christmas light installation. We handle both residential and commercial properties throughout the St. Helens and Portland Metro area.
Are you licensed, bonded, and insured?
Yes, we are fully licensed as an Oregon contractor (CCB #252799), bonded, and carry comprehensive liability insurance ($1M coverage) plus workers’ compensation for all employees. Your property and our team are fully protected.
How do I get a quote?
Getting a quote is easy! You can call or text us at (971) 328-2122, or fill out our online form. For faster quotes, text us photos of your roof, gutters, or the area needing service. Most quotes are provided within 2-4 hours, and many can be given same-day over the phone.
How much does roof cleaning cost in Oregon?
Roof cleaning in Oregon typically costs $300–$600 for a standard residential home. The final price depends on your roof’s size, pitch, the severity of moss or algae growth, and accessibility. We provide free, no-obligation estimates — call (971) 328-2122 or fill out our online form for a same-day quote.
What areas do you serve?
We proudly serve St. Helens, Scappoose, Warren, Deer Island, Columbia City, Beaverton, Hillsboro, Portland Metro, and surrounding communities throughout Columbia County and Washington County. If you’re within 30 miles of St. Helens, we can typically accommodate your location.
Do you offer warranties or guarantees?
Yes! We offer a 100% satisfaction guarantee on all services. If you’re not completely happy with the results, we’ll come back and make it right at no additional charge. For moss treatments, we include a limited regrowth warranty, if treated moss returns within the warranty window, we’ll retreat the affected areas.
What payment methods do you accept?
We accept cash, all major credit cards, checks, and offer invoicing for commercial clients. Payment is due upon completion unless other arrangements are made. We also offer contactless payment options for your convenience.
Are you available for emergency cleaning?
Yes, we offer priority scheduling for emergency situations such as overflowing gutters causing active water damage, pre-inspection cleanings for home sales, or storm-related debris removal. Call us at (971) 328-2122 and let us know you have an urgent situation.
Do you offer maintenance plans?
Yes! We offer quarterly, biannual, and annual maintenance plans with discounted pricing and priority scheduling. Our most popular plan includes gutter cleaning in spring and fall plus annual roof treatment. Maintenance plan members save 15-20% and get priority booking during busy seasons.
How soon can you schedule me?
Most jobs can be scheduled within 3-7 days during peak season (spring and fall). During slower periods, we often have availability within 1-3 days. Emergency situations receive priority scheduling and can often be accommodated within 24-48 hours.
Do you offer discounts?
Yes! We offer discounts for first-time customers (10% off), multi-service packages (save 15-20% when booking multiple services together), senior citizens and veterans (ask about current offers), and maintenance plan members (15-20% savings). We also run seasonal promotions—check our website or ask when you call.
How often should I clean my gutters in Oregon?
Oregon homeowners should clean their gutters at least twice a year: once in late fall after the leaves drop and once in spring after pollen season. If your home is surrounded by Douglas fir, maple, or oak trees, you may need gutter cleaning 3–4 times per year. Regular cleaning prevents water damage, foundation issues, and fascia rot. For a step-by-step breakdown, read our guide on how to clean gutters like a pro.
Is soft washing safe for my roof?
Yes. Soft washing is the safest and most effective method for cleaning asphalt shingle, cedar, and tile roofs. Unlike pressure washing, which can strip protective granules from your shingles, soft washing uses low-pressure water combined with biodegradable cleaning solutions to kill moss and algae at the root without causing damage. It’s the method recommended by most roofing manufacturers. Learn more in our guide: How do you clean a shingle roof?
What causes moss to grow on roofs in Oregon?
Oregon’s combination of heavy rainfall, mild temperatures, shade from tall trees, and high humidity creates the perfect environment for moss growth. Moss thrives on north-facing roof slopes and in areas shaded by Douglas fir, maple, and alder trees. Once established, moss retains moisture against your shingles, which accelerates wear and can lead to leaks. Regular roof cleaning and moss treatment every 1–2 years is the best prevention. See also: How to remove moss from your driveway.
Do I need to be home during the cleaning?
No, you don’t need to be home. As long as we have access to the areas being cleaned and an outdoor water spigot, we can complete most services while you’re away. We’ll send you before-and-after photos and a summary when the job is done. If you prefer to be present for a walkthrough, we’re happy to schedule accordingly.